Re: [9front] g

[Stuart Morrow <morrow.stuart@gmail.com>]

Yeah, I suppose it would also look in ?.awk, ?.cpp, ?.mk, and ?.rc.

I was about to solve this on my system with

	nfile -m $files | awk -F\t '$2 ~ /^text|application.x-sh/ { print $1 }'

where nfile is a file(1) that actually uses a frog to separate,
but then that reads every file two times (once by nfile, once
by grep), so I suppose the right thing all along was to have a
grep that can identify binary files by itself (as on other OSes).

Anyway, while we're on the subject, is there anything that
actually relies on Plan 9's (and Research Unix's) wrong grep -c
behaviour? (If I want just the number of lines, I can do grep|wc…)

Anyway here's nfile:

diff file.c nfile.c
176c176
< void	type(char*, int);
---
> void	type(char*);
223,226d222
< 	int i, j, maxlen;
< 	char *cp;
< 	Rune r;
<
236,244d231
< 	maxlen = 0;
< 	if(mime == 0 || argc > 1){
< 		for(i = 0; i < argc; i++) {
< 			for (j = 0, cp = argv[i]; *cp; j++, cp += chartorune(&r, cp))
< 					;
< 			if(j > maxlen)
< 				maxlen = j;
< 		}
< 	}
247c234
< 			print ("stdin: ");
---
> 			print("stdin\t");
251,252c238,239
< 		for(i = 0; i < argc; i++)
< 			type(argv[i], maxlen);
---
> 		for(int i = 0; i < argc; i++)
> 			type(argv[i]);
258c245
< type(char *file, int nlen)
---
> type(char *file)
260,272c247
< 	Rune r;
< 	int i;
< 	char *p;
<
< 	if(nlen > 0){
< 		slash = 0;
< 		for (i = 0, p = file; *p; i++) {
< 			if (*p == '/')			/* find rightmost slash */
< 				slash = p;
< 			p += chartorune(&r, p);		/* count runes */
< 		}
< 		print("%s:%*s",file, nlen-i+1, "");
< 	}
---
> 	print("%s\t", file);

--- //.git/fs/object/a9bccf9e9b1bd408629edaac277f6b3a3a4ab6fb/tree/sys/man/1/file
+++ sys/man/1/file
@@ -106,7 +106,19 @@
 .I file
 decides its input is
 binary.
+.PP
+.I Nfile
+is the same but
+filename and classification are tab-separated.
 .SH SOURCE
 .B /sys/src/cmd/file.c
+.br
+.B /sys/src/cmd/nfile.c
 .SH BUGS
 It can make mistakes.
+.br
+.I File
+should be implemented as an
+.I nfile
+wrapper.
+
--- //.git/fs/object/a9bccf9e9b1bd408629edaac277f6b3a3a4ab6fb/tree/sys/man/1/resample
+++ sys/man/1/resample
@@ -82,4 +82,5 @@
 .B /sys/src/cmd/resize.c
 .SH "SEE ALSO
 .IR crop (1),
-.IR image (6)
+.IR image (6),
+.IR file (1)


(The relevance of file to resample is it's the easiest way to find out
 an image's size and this isn't documented anywhere.)